skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : BUTJE, KAI
Total Assignments: 9
Assignment: 1
Reel/Frame:006798/0331   Pages: 3
Recorded: 12/07/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MIKSITS, MICHAEL
Exec Dt:
11/26/1993
2
TIBURTIUS, CHRISTOPH
Exec Dt:
11/22/1993
3
KISCHKEWITZ, JURGEN
Exec Dt:
11/23/1993
4
BUTJE, KAI
Exec Dt:
11/23/1993
5
WARTH, ALBRECHT
Exec Dt:
11/24/1993
6
HERZIG, FRANZ
Exec Dt:
11/24/1993
7
LANGNER, ROLAND
Exec Dt:
12/02/1993
Assignees
1
BAYER AKTIENGESELLSCHAFT
LEVERKUSEN, GERMANY D-51368
2
HAARMANN & REIMER GMBH
HOLZMINDEN, GERMANY D-37601
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5527519
NONE
08164251
Correspondence name and address
CONNOLLY AND HUTZ
ASHLEY I. PEZZNER
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 2
Reel/Frame:008309/0116   Pages: 2
Recorded: 10/22/1996
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHOPWINKEL, GERT
Exec Dt:
09/29/1996
2
BUTJE, KAI
Exec Dt:
09/23/1996
3
WIEGHAUS, GUNTER
Exec Dt:
09/25/1996
4
BATHKE, RICHARD
Exec Dt:
09/25/1996
5
GROTH, TORSTEN
Exec Dt:
10/01/1996
6
JOENTGEN, WINFRIED
Exec Dt:
10/01/1996
Assignee
1
BAYER AG
KONZERNVERWALTUNG RP, PATENTE KONZERN
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5804639
NONE
08735089
Correspondence name and address
CONNOLLY AND HUTZ
WILLIAM E. MCSHANE
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 3
Reel/Frame:008311/0089   Pages: 2
Recorded: 11/12/1996
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ELSCHNER, ANDREAS
Exec Dt:
09/27/1996
2
WEHRMANN, ROLF
Exec Dt:
09/27/1996
3
BUTJE, KAI
Exec Dt:
09/30/1996
Assignee
1
BAYER AG
PATENTE KONZERN
KONZERNVERWALTUNG RP
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5917279
NONE
08745999
Correspondence name and address
CONNOLLY AND HUTZ
RICHARD M. BECK
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 4
Reel/Frame:008306/0857   Pages: 2
Recorded: 11/08/1996
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WIEDERHOFT, GERHARD
Exec Dt:
10/15/1996
2
BUTJE, KAI
Exec Dt:
10/17/1996
3
BARENTHIEN, PETER-JOACHIM
Exec Dt:
10/21/1996
4
BODIGER, MICHAEL
Exec Dt:
10/24/1996
5
ALBERTS, HEINRICH
Exec Dt:
10/28/1996
Assignee
1
BAYER AG KONZERNVERWALTUNG RP
PATENTE KONZERN
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5840111
NONE
08744421
Correspondence name and address
CONNOLLY & HUTZ
GERARD M. O'ROURKE
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 5
Reel/Frame:008976/0005   Pages: 2
Recorded: 02/12/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LINDE, GUNTER
Exec Dt:
01/16/1998
2
EITEL, MANFRED
Exec Dt:
01/19/1998
3
SCHMIDT-PARK, OLAF
Exec Dt:
01/21/1998
4
BUTJE, KAI
Exec Dt:
01/19/1998
Assignee
1
BAYER AG KONZERNBEREICH RP
PATENTE UND LIZENZEN
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5961710
NONE
09022157
Correspondence name and address
CONNOLLY & HUTZ
RICHARD M. BECK
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 6
Reel/Frame:009003/0288   Pages: 2
Recorded: 02/03/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LINDE, GUNTER
Exec Dt:
01/16/1998
2
BUTJE, KAI
Exec Dt:
01/19/1998
3
EITEL, MANFRED
Exec Dt:
01/16/1998
Assignee
1
BAYER AG
PATENTS UND LIZENZEN
KONZERNBEREICH RP
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6132505
NONE
09017778
Correspondence name and address
CONNOLLY AND HUTZ
RICHARD M. BECK
P.O. BOX 2207
WILMINGTON, DELAWARE 19899
Assignment: 7
Reel/Frame:011339/0157   Pages: 2
Recorded: 11/22/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ETZENBACH, NORBERT
Exec Dt:
10/06/2000
2
BUTJE, KAI
Exec Dt:
10/09/2000
Assignee
1
BAYER AKTIENGESELLSCHAFT
PATENT UND LIZENZEN
KONZERNBEREICH RP
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6503315
NONE
09718272
Correspondence name and address
BAYER CORPORATION
THOMAS W. ROY
PATENT DEPARTMENT
100 BAYER ROAD
PITTSBURGH, PENNSYLVANIA 15205-9741
Assignment: 8
Reel/Frame:012616/0458   Pages: 2
Recorded: 02/11/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFF, DANIEL-GORDON
Exec Dt:
11/27/2001
2
HOHEISEL, WERNER
Exec Dt:
11/27/2001
3
BUTJE, KAI
Exec Dt:
11/29/2001
Assignee
1
BAYER AKTIENGESELLSCHAFT
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6565973
US20020071948
09972547
Correspondence name and address
BAYER CORP.
THOMAS W. ROY
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 9
Reel/Frame:021313/0164   Pages: 2
Recorded: 07/30/2008
Attorney Dkt #:P001 00036N
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FRIEDRICH, HOLGER
Exec Dt:
03/19/2007
2
BUTJE, KAI
Exec Dt:
03/19/2007
3
HOLTMANN, UDO
Exec Dt:
03/23/2007
Assignee
1
LANXESS DEUTSCHLAND GMBH
D-51369
LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7837785
US20080257213
11789074
Correspondence name and address
NICANOR A. KOHNCKE
111 RIDC PARK WEST DRIVE
PITTSBURGH, PA 15275-1112

Search Results as of: 05/10/2024 05:19 AM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT